greenwood



(No Model.) 4 Sheets-Sheet 1.

P. P. GREENWOOD.

MANUFACTURE OF HORSESHOES.

No. 320,349. Patented June 16, 1885,.

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I 1 i I I 4 Sheets-Sheet 2.

(No Model.)

P. F. GREENWOOD.

MANUFACTURE OF HORSESHOES.

No. 320.849. Patented June 16, 1885.

(No Model.)

P. P. GREENWOOD.

4 Sheets-Sheet 3.

MANUFACTURE OF HORSESHOESQ Patented June- 16, 1885.

ffG/f (No Model.) 4 Sheets-Sheet 4.

P. F. GREENWOOD.

MANUFACTURE OF HORSESHOBS.

N0. 320,349. I Patented June 16, 1885.

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iJNTTnn STATns PATENT PETER F. GREENW OOD, OF OATASAUQUA, PA., ASSIGNORT'O HIMSELF AND THE BRYDE) FORGED HORSESHOE \VORKS, (LDHTED,) OF SAMEPLACE.

MANUFACTURE OF HORSESHOES.

SPECIFICATIOZF forming part of Letters Patent No. 320,349, dated June16, 1835.

Application filed July ll, 1884. (No model.)

To all; whom it may concern.-

Be it known that I, PETER F. GREENWOOD, a subject of the Queen of GreatBritain and Ireland, residing in Catasauqua, Lehigh county,Pennsylvania, have invented certain Impro vementsin the Manufacture ofHorseshoes, of which the following is a specification.

My invention consists of animprovedmethod or process, fully describedand claimed here inafter, of economically manufacturing horseshoes.

In the accompanying drawings, Figures 1 and 2, Sheet 1, are views of therolls,by which the first step or branch of the process is carried intoeffect; Fig. 3, a perspective view of the crude bar as it appears beforebeing subjected to the rolls, Figs. 1 and 2; Fig. 4.aview of the blankformed by thus passing the'bar between the rolls; Fig. 5, a section ofthe blank, Fig. 4, on theline 1 2; Fig. 6, a section of the blank on theline 3 4; Fig. 7, Sheet 2, a plan view showing mechanism for conductingthe second step of the processthat is, the bending of a section, Fig. 4,of the rolled bar; Fig. 8, a perspective view of the blank bent into theform of a horseshoe; Figs. 9, 10, 11, 12, and 18, Sheet 8, views of thedrop-press dies by which the third branch of the process is conducted,Fig. 9 being an inverted plan view of the upper die, Fig. 11 a sectionof Fig. 9 on the line 5 6, Fig. 10 a plan view of the lower die, Fig. 12a section of Fig. 10 on the line '7 8, and Fig. 13 a vertical section ofthe two dies; Fig. 11, a perspective view of the shoe-blank after beingsubjected to the action of the drop-press dies; Fig. 15, a perspectiveview of Fig. 11 inverted; Fig. 16, Sheet 4, an inverted plan of theupper trimming-die; Fig. 17, a plan view of the lower trimmingdie; Fig.18, a section of the trimming-dies on the line 10 11, Figs. 16 and 17;Fig. 19, a section of the same dies on the line 12 13; Fig. 20, aperspective view of the completed shoe; Fig. 21, a perspective view ofthe same inverted, and Fig. 22 a perspective view of the toe end of theshoe.

Referring in the first instance to Figs. land 2, Sheet 1, A and B aretwo rolls, the latter having a simple groove, 1), and the other havingsegmental projections to, situated in the relation to each other shownin Fig. 2, the pro jection being arranged to pass freely into the grooveof the lower roller, and each projection having a segmental rib, (Z.When a bar, D, Fig. 3, has passed between the roils, will assume theform shown in Fig. r-that is to say, there will be depressions c c atintervals formed by the segmental projections a of the upper roll, A,and at the bottom of each depression there willbe a recess,f, formed bythe segmental rib d of the upper roll. The rolled bar, which may befifteen or twenty feetlong,

is now cut into sections by severing it at intervals on the lines a: a,Fig. 4, each section having the central projection, 71, and opposite endprojections, 13 '1 and forming the blank M, resulting from the firststep of the process. It should be stated here that the central and endportions of this blank are of the same width as the original bar andslightly narrower than the depressed portions of the bar, which havebeen distended laterally by rolling, in order that these projections,which are to form the toe and heel calks, may readily enter the openingsin the die inthe drop-press, ashereinafter described. Furthermore, bythus making the bar narrowest from 3 to y, Fig. 1, the bending of theblank during the next step of the process is facilitated.

The mechanism which I employ for bending the above-described blank iswell known to those skilled in the art to which my invention relates;hence a briefdcscription in connection with Fig. 7 will suffice here. Adisk, E, on a shaft illustrated by a dotted circle in the said figure,has a projection, F, which conforms to the shape of the inner edge ofthe shoe, and to the outer edge of the disk is secured a cam,

G, for bearing against a roller, m, on one arm of the bell-crank leverH, which is pivoted at 0 p, a roller, 01, being carried by the other armof the bell-crank lever. The blank M (shown by dotted lines, Fig. 7) isheld by a setscrew, q, against the projection F near the point of thesame, and as the disk is turned partly round 5 the roller a presses theblank against the said projection F, as determined bythe action of thecam G onthe roller m of the 'bcllcrank lever, the disk being turned backafter completing the bending.

IOC

If atoe-piece or clip, 0,

Fig. 8 shows the completed bent blank N, of which the end projections, ii, of the abovementioned section M of the bar form the crude calks, andthe central projection, h, the toe.

Referring now to Figs. 9, 10,11, and 12, the lower die, I, Fig. 12, hasa recess, 1., to conform with the shape of the under side of the.finished shoe, and in this recess are small dies to for making thedepressions for the nail-holes, the upper die, I, having an enlargement,'0, with inclined edges ww, which form the usual bevel in the uppersurface of the shoe at and near the inner edge of the same. When thebent blank N has been subjected to the action of these drop-press dies,it will be in the condition shown in Figs. 14 and l5-that is to say,there will be a complete shoe with fins of superfluous metal, and thesefins are removed by the dies shown by Figs. 16, 17, 18, and 19, Sheet 4,which need not be described,'as they are substantially the same as thoseused for the same purpose and well known to those skilled in the art. Bythe action of these dies a merchantable shoe, Figs. 20 and 21, iscompleted, nothing remaining to be done to this shoe except the piercingof the same for the nails at the points determined by the indentationsmade by the small dies at u, Figs. 10 and 12. Fig. 22, is required,

it may be made by hand or mechanism before employed for the purpose.

I may state in conclusion that I have been engaged for several years inthe manufacture of horseshoes and the machinery therefor, and that shoescan be made at a cheaper rate by the above-described succession ofoperations than by any process within my knowledge.

I do not claim in this application the improved blank shown in Figs. 4,5, and 6, as this forms the subject of a separate application for apatent filed by me February 19, 1885, Serial N 0. 156,393. 1

I claim as my invention The within-described mode of manufacturinghorseshoes, the said mode consisting of the following successive steps,namely: first, rolling a bar, D, to the condition shown in Fig. 4;second, severing the bar into sections M; third, reducing each sectionto the bent blank N; fourth, drop forging each bentblank, and, fifth,removing the fins from the said blank, all substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

' HARRY SMITH,

HENRY HoWsoN, J r.

